code: def test_geodataframe_should_be_mapped():
      expected_value = {
          "name": names,
          "coord": [json.dumps(mapping(geom)) for geom in geoms],
      }
  
      assert expected_value == _standardize_value(make_geodataframe())
  
file_path: lets-plot/python-package/test/geo_data/test_map_geodataframe.py
imports: import json
  from geo_data_test_util import get_data_meta, get_map_data_meta
  from geopandas import GeoDataFrame
  from shapely.geometry import MultiPolygon, Polygon, LinearRing, Point, mapping
  from lets_plot._type_utils import _standardize_value
  from lets_plot.plot import ggplot, geom_polygon
label_desc: Use image node_id 2 for calling a global function with example usage: test_geodataframe_should_be_mapped() without return types